Shield Security: Blocks Bots, Protects Users, and Prevents Security Breaches <= 21.0.9 - Missing Authorization to Authenticated (Subscriber+) Email MFA Update

Missing Authorization
CVE CVE-2025-14427
CVSS Medium (4.3)
Publicly Published February 18, 2026
Last Updated February 19, 2026
Researcher shark3y
Description

The Shield Security: Blocks Bots, Protects Users, and Prevents Security Breaches plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `MfaEmailDisable` action in all versions up to, and including, 21.0.9. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disable the global Email 2FA setting for the entire site.

References

1 affected software package

Software Type Plugin
Software Slug wp-simple-firewall (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 21.0.9
Patched Version
  • 21.0.10
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